Palm Beach, FL, USA
Dane M. Tatarniuk, DVM, MS, DIPLOMATE ACVS Department of Veterinary Clinical Sciences Iowa State University – College of Veterinary Medicine Ames, IA, USA
Troy N. Trumble, DVM, PhD, DIPLOMATE ACVS College of Veterinary Medicine Veterinary Medical Center University of Minnesota St. Paul, MN, USA
Rob Van Wessum, DVM, MS, DIPLOMATE ACVSMR, cert pract knmvd (eq) Equine All‐Sports Medicine Center PLLC Mason, MI, USA
Ashlee E. Watts, DVM, PhD, DIPLOMATE ACVS Director Comparative Orthopedics and Regenerative Medicine Laboratory Texas A&M University College Station, TX, USA
Preface
Welcome to the second edition of the Equine Lameness Manual. The second edition is a full‐color, electronic version that has been updated with new information from the seventh edition of Adams and Stashak’s Lameness in Horses. To further condense the second edition, the anatomy and imaging chapters from the first edition were eliminated and relevant information was included within each of the common lameness conditions. Further reorganization and consolidation of material was performed throughout the second edition focusing on physical examination of the horse, common clinical lameness conditions, and potential therapies. The goal of the second edition is to provide the reader with the nuts and bolts of lameness problems in horses. The information is not specifically referenced to individual references but instead a bibliography is included at the end of each chapter.
Also available to the reader are short “how to” video clips that demonstrate a variety of different physical examination (palpation, hoof testing, flexion tests) and perineural and intrasynovial injection techniques. The clips will be available on a companion website intended to complement the text within the book. The select perineural and intrasynovial injection video clips contain extensive anatomic details inserted directly into live demonstrations to better illustrate the techniques. Important anatomic landmarks are clearly labeled on the videos for further clarity.
I wish to thank all of the authors that contributed new information to the second edition as well as to the medical illustrators that helped create the videos for the companion website. I would also like to thank all of the horses, clients, and veterinarians that have provided the case material, knowledge, and experiences that have been included within this text. I hope that the second edition of the Equine Lameness Manual is a succinct lameness text that becomes a must have for both students and more experienced veterinarians alike.
Common Terminologies and Abbreviations
| Terminology | Abbreviations |
| Distal or third phalanx | P3; coffin bone |
| Middle or second phalanx | P2 |
| Proximal or first phalanx | P1 |
| Metacarpus/metatarsus | MC/MT or MC3/MT3; cannon bone |
| Second and fourth metacarpal/metatarsal bones | MC2, MC4, MT2, MT4; splint bones |
| Proximal sesamoid bones | PSB |
| Distal sesamoidean ligaments | DSL |
| Distal sesamoidean impar ligament | DSIL |
| Collateral suspensory ligaments of navicular bone | CSLs |
| Collateral ligament(s) | CL or CLs |
| Deep digital flexor tendon | DDFT or DDF |
| Superficial digital flexor tendon | SDFT or DDF |
| Accessory ligament of deep digital flexor tendon | ALDDFT, ICL, or inferior check |
| Accessory ligament of superficial digital flexor tendon | ALSDFT, SCL, or superior check |
| Digital flexor tendon sheath | DFTS |
| Common digital extensor tendon | CDET |
| Long digital extensor tendon | LoDET |
| Lateral digital flexor tendon | LDFT |
| Distal interphalangeal joint | DIP joint or coffin joint |
| Proximal interphalangeal joint | PIP joint or pastern joint |
| Tarsometatarsal joint | TMT joint |
| Distal intertarsal joint | DIT joint |
| Proximal intertarsal joint | PIT joint |
| Tarsocrural joint | TC joint |
| Distal tarsal joints | DT joints |
| Metacarpo/metatarsophalangeal joint | MCP/MTP or fetlock joint |
| Medial femorotibial joint | MFT joint |
| Lateral femorotibial joint | LFT joint |
| Femoropatellar joint | FP joint |
| Scapulohumeral joint | SH joint or shoulder joint |
| Sacroiliac joint | SI joint |
| Computed tomography | CT |
| Magnetic resonance imaging | MRI |
| Increased radiopharmaceutical uptake | IRU |
| Ultrasound/Ultrasonography | US |
| Cross‐sectional area | CSA |
| Osteochondrosis/osteochondritis dissecans | OC/OCD |
| Osteoarthritis | OA |
| Developmental orthopedic disease | DOD |
| Subchondral cystic lesion | SCL |